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252174385 = 5103489659
BaseRepresentation
bin11110000011111…
…10000000110001
3122120111210020001
433001332000301
51004024040020
641004550001
76151306201
oct1701760061
9576453201
10252174385
1111a389391
1270552301
1340324318
14256c4401
151721350a
hexf07e031

252174385 has 8 divisors (see below), whose sum is σ = 305547840. Its totient is φ = 199780464.

The previous prime is 252174383. The next prime is 252174389. The reversal of 252174385 is 583471252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 252174385 - 21 = 252174383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252174383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244315 + ... + 245344.

It is an arithmetic number, because the mean of its divisors is an integer number (38193480).

Almost surely, 2252174385 is an apocalyptic number.

It is an amenable number.

252174385 is a deficient number, since it is larger than the sum of its proper divisors (53373455).

252174385 is a wasteful number, since it uses less digits than its factorization.

252174385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489767.

The product of its digits is 67200, while the sum is 37.

The square root of 252174385 is about 15879.9995277078. Note that the first 3 decimals coincide. The cubic root of 252174385 is about 631.7816243675.

The spelling of 252174385 in words is "two hundred fifty-two million, one hundred seventy-four thousand, three hundred eighty-five".

Divisors: 1 5 103 515 489659 2448295 50434877 252174385